:root {
            --primary: #6a11cb;
            --secondary: #2575fc;
            --accent: #ff4b8d;
            --dark: #1a1a2e;
            --light: #f8f9ff;
            --gray: #6c757d;
            --success: #28a745;
            --shadow: rgba(106, 17, 203, 0.15);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #f8f9ff 100%);
            color: #333;
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(90deg, var(--dark) 0%, var(--primary) 100%);
            color: white;
            padding: 1.2rem 0;
            box-shadow: 0 5px 20px var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(45deg, #ffd200, #ff4b8d);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }
        .my-logo:hover {
            transform: scale(1.05);
        }
        .main-nav {
            display: flex;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 1.1rem;
            padding: 0.5rem 1rem;
            border-radius: 30px;
        }
        .main-nav a:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-3px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 0.8rem 20px;
            font-size: 0.95rem;
            color: var(--gray);
        }
        .breadcrumb a {
            color: var(--primary);
            font-weight: 600;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .search-section {
            background: white;
            padding: 2.5rem 0;
            text-align: center;
            border-bottom: 1px solid #dee2e6;
        }
        .search-box {
            max-width: 600px;
            margin: 0 auto;
            display: flex;
            box-shadow: 0 10px 30px var(--shadow);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-box input {
            flex: 1;
            padding: 1.2rem 1.8rem;
            border: none;
            font-size: 1.1rem;
            outline: none;
        }
        .search-box button {
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            color: white;
            border: none;
            padding: 0 2.5rem;
            cursor: pointer;
            font-size: 1.2rem;
            transition: all 0.3s;
        }
        .search-box button:hover {
            background: linear-gradient(45deg, var(--secondary), var(--primary));
            transform: scale(1.05);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 2.5rem 0;
        }
        .article-content {
            background: white;
            border-radius: 20px;
            padding: 3rem;
            box-shadow: 0 15px 40px var(--shadow);
        }
        .sidebar {
            background: white;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 10px 30px var(--shadow);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 {
            color: var(--primary);
            border-bottom: 3px solid var(--accent);
            padding-bottom: 0.8rem;
            margin-bottom: 1.5rem;
            font-size: 1.5rem;
        }
        .sidebar ul {
            list-style: none;
        }
        .sidebar li {
            margin-bottom: 1.2rem;
            padding-bottom: 1rem;
            border-bottom: 1px dashed #eee;
        }
        .sidebar a {
            color: var(--dark);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar a:hover {
            color: var(--primary);
            transform: translateX(5px);
        }
        .sidebar i {
            color: var(--accent);
        }
        h1 {
            font-size: 3.2rem;
            line-height: 1.2;
            color: var(--dark);
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.05);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--primary);
            margin: 3rem 0 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid #eee;
        }
        h3 {
            font-size: 1.7rem;
            color: var(--secondary);
            margin: 2.5rem 0 1.2rem;
        }
        h4 {
            font-size: 1.4rem;
            color: var(--accent);
            margin: 2rem 0 1rem;
        }
        p {
            margin-bottom: 1.8rem;
            font-size: 1.15rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--dark);
            line-height: 1.5;
            padding: 1.5rem;
            background: linear-gradient(90deg, rgba(106, 17, 203, 0.08), rgba(37, 117, 252, 0.08));
            border-left: 5px solid var(--primary);
            border-radius: 0 10px 10px 0;
            margin: 2.5rem 0;
        }
        .highlight {
            background: linear-gradient(120deg, rgba(255, 75, 141, 0.15) 0%, rgba(255, 75, 141, 0) 80%);
            padding: 1.5rem;
            border-radius: 15px;
            margin: 2rem 0;
            border: 1px solid rgba(255, 75, 141, 0.2);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .stat-box {
            background: white;
            padding: 1.8rem;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 8px 20px var(--shadow);
            border-top: 5px solid var(--primary);
            transition: transform 0.3s;
        }
        .stat-box:hover {
            transform: translateY(-10px);
        }
        .stat-box h4 {
            font-size: 2.8rem;
            color: var(--primary);
            margin-bottom: 0.5rem;
        }
        .stat-box p {
            font-size: 1rem;
            color: var(--gray);
            margin: 0;
        }
        .featured-image {
            border-radius: 15px;
            overflow: hidden;
            margin: 3rem 0;
            box-shadow: 0 20px 40px rgba(0,0,0,0.15);
            position: relative;
        }
        .featured-image img {
            width: 100%;
            transition: transform 0.5s;
        }
        .featured-image:hover img {
            transform: scale(1.05);
        }
        .image-caption {
            text-align: center;
            font-style: italic;
            color: var(--gray);
            margin-top: 1rem;
            font-size: 1rem;
        }
        .update-time {
            color: var(--gray);
            font-size: 0.95rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .update-time i {
            color: var(--accent);
        }
        .interactive-module {
            background: linear-gradient(135deg, #f8f9ff, #ffffff);
            border-radius: 20px;
            padding: 2.5rem;
            margin: 3.5rem 0;
            border: 2px dashed var(--primary);
            text-align: center;
        }
        .rating-stars {
            font-size: 2.5rem;
            color: #ffd700;
            margin: 1.5rem 0;
            cursor: pointer;
        }
        .rating-stars i {
            transition: all 0.2s;
            margin: 0 5px;
        }
        .rating-stars i:hover {
            transform: scale(1.3);
            color: #ffed4e;
        }
        .comment-box {
            width: 100%;
            min-height: 150px;
            padding: 1.5rem;
            border: 2px solid #dee2e6;
            border-radius: 15px;
            font-size: 1.1rem;
            margin: 1.5rem 0;
            resize: vertical;
            outline: none;
            transition: border 0.3s;
        }
        .comment-box:focus {
            border-color: var(--primary);
        }
        .btn {
            display: inline-block;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.1rem;
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 8px 20px var(--shadow);
        }
        .btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px var(--shadow);
            background: linear-gradient(45deg, var(--secondary), var(--primary));
        }
        .btn-secondary {
            background: linear-gradient(45deg, var(--gray), #495057);
        }
        .btn-secondary:hover {
            background: linear-gradient(45deg, #495057, var(--gray));
        }
        .site-footer {
            background: var(--dark);
            color: white;
            padding: 3.5rem 0 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-section h4 {
            color: white;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.7rem;
            border-bottom: 2px solid var(--primary);
        }
        friend-link {
            display: inline-block;
            background: rgba(255,255,255,0.1);
            padding: 0.8rem 1.5rem;
            margin: 0.5rem;
            border-radius: 30px;
            transition: all 0.3s;
        }
        friend-link:hover {
            background: var(--primary);
            transform: translateY(-5px);
        }
        .copyright {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            color: #aaa;
            font-size: 0.95rem;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            h1 {
                font-size: 2.7rem;
            }
            h2 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--dark);
                flex-direction: column;
                padding: 2rem;
                clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
                transition: clip-path 0.4s ease-in-out;
                z-index: 999;
                box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            }
            .main-nav.active {
                clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
            }
            .hamburger {
                display: block;
            }
            .article-content {
                padding: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            .search-box {
                flex-direction: column;
                border-radius: 15px;
            }
            .search-box button {
                padding: 1.2rem;
            }
        }